RFmxCdma2kMXQevmResults.FetchEvm Method
- Updated2024-07-17
- 2 minute(s) read
RFmx
Returns the EVM value and related measurement values of the QEVM measurement.
Namespace: NationalInstruments.RFmx.Cdma2kMX
Assembly: NationalInstruments.RFmx.Cdma2kMX.Fx40 (in NationalInstruments.RFmx.Cdma2kMX.Fx40.dll) Version: 24.5.0.49286 (24.5.0.49286)
Syntax
public int FetchEvm( string selectorString, double timeout, out double meanRmsEvm, out double maximumPeakEvm, out double meanFrequencyError, out double meanMagnitudeError, out double meanPhaseError, out double meanChipRateError )
Public Function FetchEvm ( selectorString As String, timeout As Double, <OutAttribute> ByRef meanRmsEvm As Double, <OutAttribute> ByRef maximumPeakEvm As Double, <OutAttribute> ByRef meanFrequencyError As Double, <OutAttribute> ByRef meanMagnitudeError As Double, <OutAttribute> ByRef meanPhaseError As Double, <OutAttribute> ByRef meanChipRateError As Double ) As Integer
Parameters
- selectorString String
- Specifies a selector string comprising of the result name. If you do not specify the result name, the default result instance is used.
- timeout Double
- Specifies the timeout for fetching the specified measurement. This value is expressed in seconds. Set this value to an appropriate time, longer than expected for fetching the measurement. A value of -1 specifies that the method waits until the measurement is complete.
- meanRmsEvm Double
-
Upon return, contains the mean averaged RMS EVM of the received signal. This value is expressed as a percentage.
- maximumPeakEvm Double
-
Upon return, contains the maximum peak EVM of the received signal. This value is expressed as a percentage.
- meanFrequencyError Double
-
Upon return, contains the mean averaged frequency error of the received signal. This value is expressed in Hz.
- meanMagnitudeError Double
-
Upon return, contains the mean averaged magnitude error of the received signal. This value is expressed as a percentage.
- meanPhaseError Double
-
Upon return, contains the mean averaged phase error of the received signal. This value is expressed in degrees.
- meanChipRateError Double
-
Upon return, contains the measured mean chip rate error of the received signal. This value is expressed in parts per million (ppm).
Return Value
Int32Returns the status code of this method. The status code either indicates success or describes a warning condition.